열관류율 계산 방법

■ 열관류율 계산 방법 (1) 1, 구성 재료의 열전도율 결정 λ    시험성적서 또는 한국산업규격에서 각 구성 재료의 열전도율을 결정    (열전도율은 20±5°C 에서의 측정값을 사용) 2, 구성 재료의 열 저항 산출 Rn    Rn = dn/ λn    재료의 열 저항    : R(m².K/W)    재료의 두께       : D(m)    재료의 열전도율 : λ(W/m².K) 3, 구성 재료의 열관류율 산출 K   K = 1 / [ Ri + { Σ ( dn/ λn) } + Ro ]   Ri  : 실내 표면 열전달 저항     Ro : 실외 표면 열전달 저항     K  : 구조체의 열관류율(W/m²K)   *  열관류율 계산 예                                                   http//www.seouleps.co.kr <TABLE style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-COLLAPSE: collapse; BORDER-TOP: medium none; BORDER-RIGHT: medium none" border=1 cellSpacing=0 cellPadding=0> <TBODY> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=39 vAlign=center width=176> 구 분</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=39 vAlign=center width=102> 두께  (m)</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=39 vAlign=center width=102> 열전도율  W/m².K / kcal/mh°C</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=39 vAlign=center width=102> 열저항  m².K/W / m²h°C/kcal</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=39 vAlign=center width=102> 비고</TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=176> 실내 표면 열전달 저항</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102> -</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102> -</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102> 0.110/0.130</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102> 상수값</TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=176> 석고보드</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102> 0.0095</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102> 0.221/0.190</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102> 0.043/0.050</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102>  </TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=176> 압출법 단열판</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102> 0.0850</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102> 0.028/0.024</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102> 3.036/3.542</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102>  </TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=20 vAlign=center width=176> 콘크리트</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=20 vAlign=center width=102> 0.2000</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=20 vAlign=center width=102> 1.628/1.400</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=20 vAlign=center width=102> 0.123/0.143</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=20 vAlign=center width=102>  </TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=176> 실외 표면 열전달 저항</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102> -</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102> -</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102> 0.043/0.050</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102> 상수값</TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=39 vAlign=center rowSpan=2 width=176> 합    계</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102>  </TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102>  </TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102> 3.355/3.915</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=19 vAlign=center width=102>  </TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=20 vAlign=center width=407 colSpan=4>   열관류율 = 1/열저항의 합 = 1/3.355=0.298W, 1/3.915=0.255K</TD></TR></TBODY></TABLE> 참고) w/(m.K) SI 단위  1Cal : 4.18605J     1kcal/mh°C = 1.163w/(m.K)   1w/(m.K) = 0.8600kcal/mh°C * 열관류율 계산에 사용되는 상수값 실내외 표면 열전달 저항                                                   (단위 :w/(m.K) / (m²h°C/kcal) <TABLE style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-COLLAPSE: collapse; BORDER-TOP: medium none; BORDER-RIGHT: medium none" border=1 cellSpacing=0 cellPadding=0> <TBODY> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=76 vAlign=center rowSpan=2 width=149>  </TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=76 vAlign=center rowSpan=2 width=149> 실내표면 열전달 저항</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=32 vAlign=center width=285 colSpan=2> 실외표면 열전달저항</TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=44 vAlign=center width=143> 외기에 간접 면하는 경우</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=44 vAlign=center width=143> 외기에 직접 면하는 경우</TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=28 vAlign=center width=149> 거실의 외벽</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=28 vAlign=center width=149> 0.11/0.13</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=28 vAlign=center width=143> 0.11/0.13</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=28 vAlign=center width=143> 0.043/0.05</TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=28 vAlign=center width=149> 최하층 거실의 바닥</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=28 vAlign=center width=149> 0.086/0.10</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=28 vAlign=center width=143> 0.15/0.17</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=28 vAlign=center width=143> 0.043/0.05</TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=44 vAlign=center width=149> 최상층 거실 반자, 지붕</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=44 vAlign=center width=149> 0.086/0.10</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=44 vAlign=center width=143> 0.086/0.10</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=44 vAlign=center width=143> 0.043/0.05</TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=28 vAlign=center width=149> 공동주택 층간바닥</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=28 vAlign=center width=149> 0.086/0.10</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=28 vAlign=center width=143> -</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=28 vAlign=center width=143> -</TD></TR></TBODY></TABLE> ■ 열관류율 계산 방법 (2) <IMG border=0 src="file:///C:/DOCUME~1/안신홍/LOCALS~1/Temp/Hnc/BinData/EMB00000e9036cd.gif" width=166 height=135>     <IMG border=0 src="file:///C:/DOCUME~1/안신홍/LOCALS~1/Temp/Hnc/BinData/EMB00000e9036ce.gif" width=185 height=111> 열관류율 계산 설계조건  • 면적 : 10m2 • 시간 : 30분 • 외부온도 : -10℃ • 실내온도 : 22℃ • 단열재는 발포폴리에틸렌으로 하며 3cm와 5cm일 경우를 계산하여라. <IMG border=0 src="file:///C:/DOCUME~1/안신홍/LOCALS~1/Temp/Hnc/BinData/EMB00000e9036cf.gif" width=401 height=264>  <TABLE style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; BORDER-COLLAPSE: collapse; BORDER-TOP: medium none; BORDER-RIGHT: medium none" border=1 cellSpacing=0 cellPadding=0> <TBODY> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=45 vAlign=center width=113> 재료</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=45 vAlign=center width=164> 열전도율(kcal/m.h.℃)</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=45 vAlign=center width=58> 두께(m)</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=45 vAlign=center width=155> 열저항(m2.h.℃/kcal)</TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=113> 외부벽체 표면</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=164>  </TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=58>  </TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=155> 0.05</TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=113> 벽돌</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=164> 0.53</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=58> 0.10</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=155> 0.19</TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=113> 발포폴리에틸렌</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=164> 0.03</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=58> 0.03</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=155> 1.00</TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=113> 벽돌</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=164> 0.53</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=58> 0.20</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=155> 0.38</TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=113> 마감몰탈</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=164> 0.93</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=58> 0.02</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=155> 0.02</TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=113> 내부벽체 표면</TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=164>  </TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=58>  </TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=155> 0.125</TD></TR> <TR> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=113>  </TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=164>  </TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=58>  </TD> <TD style="BORDER-BOTTOM: #000000 0.4pt solid; BORDER-LEFT: #000000 0.4pt solid; PADDING-BOTTOM: 1.4pt; PADDING-LEFT: 1.4pt; PADDING-RIGHT: 1.4pt; BORDER-TOP: #000000 0.4pt solid; BORDER-RIGHT: #000000 0.4pt solid; PADDING-TOP: 1.4pt" height=17 vAlign=center width=155> Rt = 1.765</TD></TR></TBODY></TABLE> 열관류율(K) = 1/Rt = 0.567 (kcal/m2.h.℃) 열량 <IMG border=0 src="file:///C:/DOCUME~1/안신홍/LOCALS~1/Temp/Hnc/BinData/EMB00000e9036d0.gif" width=111 height=46>   <IMG border=0 src="file:///C:/DOCUME~1/안신홍/LOCALS~1/Temp/Hnc/BinData/EMB00000e9036d1.gif" width=146 height=91> 0.567*32*10*0.5 = 90.72 kcal/h 단열재가 5cm 일 경우에는 열관류율이 0.412(kcal/m2.h.℃)로 단열성능이 더 향상됨을 알 수 있다. <IMG border=0 src="file:///C:/DOCUME~1/안신홍/LOCALS~1/Temp/UNI00000e9036d2.gif" width=550 height=0> <IMG border=0 src="file:///C:/DOCUME~1/안신홍/LOCALS~1/Temp/Hnc/BinData/EMB00000e9036d4.JPG" width=15 height=14>열관류율을 이용한 단열 설계 위 벽체에서 열관류율은 0.567 (kcal/m2.h.℃)이다. 그러나 건축법규에서 제안하고 있는 1급 외벽체의 열관류율 기준이 0.45(kcal/m2.h.℃)이므로 벽돌과 마감몰탈 사이에 스티로폴을 삽 입하여 이 기준을 만족하고 싶을 경우 스티로폴의 적정 두께는 어느정도가 적당하겠는가 ? Kold = 0.567(kcal/m2.h.℃)   Knew = 0.45(kcal/m2.h.℃) Rold = 1.764(m2.h.℃/kcal)   Rnew = 2.22(m2.h.℃/kcal) Rnew - Rold = 0.456(m2.h.℃/kcal) 스티로폴의 열전달률 = 0.05(kcal/m.h.℃) <IMG border=0 src="file:///C:/DOCUME~1/안신홍/LOCALS~1/Temp/Hnc/BinData/EMB00000e9036d5.gif" width=240 height=41> d = k.R = 0.05*0.456 = 0.0228m = 23mm 따라서 스티로폴 23mm를 삽입하면 법규를 만족시킬 수 있다.