Flame　outward　radiation　plays　a　crucial　role　in　the　risk　assessment　and　the　firefighting　guidance　for　accidents　involving　multiple　pool　fires.　However,　current　research　primarily　focuses　on　single　pool　fires,　with　limited　studies　conducted　on　multiple　pool　fires　due　to　the　complex　interactions　between　flames.　The　objective　of　this　paper　is　to　enhance　the　comprehension　of　flame　radiation　from　multiple　pool　fires,　and　to　provide　support　in　risk　assessment　during　such　accidents.　This　study　presents　an　experimental　investigation　into　the　flame　outward　radiation　characteristics　of　multiple　pool　fires　using　identical　round　pools　(20　cm　diameter)　fueled　with　n-heptane　as　fire　sources.　A　series　of　experiments　involving　double　and　triple　pool　fires　were　conducted　by　manipulating　the　spacing　and　number　of　fire　sources.　The　results　indicate　that　the　flame　tilt　angle　of　multiple　pool　fires　increases　first　and　then　stabilizes　as　spacing　decreases.　The　temperature　distribution　observed　in　non-tilting　flames　resembles　the　classical　plume　temperature　distribution　observed　in　single　fires.　Furthermore,　a　temperature　distribution　expression　considering　the　tilt　angle　is　established　for　tilting　flames.　Finally,　a　weighted　multi-point　source　radiation　calculation　model　for　multiple　pool　fires　is　proposed,　where　the　weights　are　determined　based　on　the　product　of　quartic　flame　temperature　and　emissivity　to　account　for　different　point　sources＇　contributions.　Comparisons　against　other　models　are　performed　using　experimental　data　to　verify　the　accuracy.　This　work　presents　a　novel　simplified　approach　for　quantifying　flame　radiation　emitted　from　multiple　pool　fires.　©　2024