Experimental Study on the Effect of In/Out Radial-Finned Heat Sink with PCM under Constant and Intermittent Power Mode in Power LEDs

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">LED parameter</td><td class="align_center">Value</td><td class="align_center">Unit</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">Driving current</td><td class="align_center">360-900</td><td class="align_center">mA</td></tr><tr><td class="align_left">Voltage</td><td class="align_center">40</td><td class="align_center">V</td></tr><tr><td class="align_left">Maximum junction temperature</td><td class="align_center">125</td><td class="align_center">°C</td></tr><tr><td class="align_left">Size (<span class="nowrap"><svg height="12.7112pt" id="M7" style="vertical-align:-3.403299pt" version="1.1" viewbox="-0.0498162 -9.3079 76.8175 12.7112" width="76.8175pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M238 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31 19 26L18 0H231V26C171 32 166 39 166 103V341C194 373 232 392 270 392C337 392 368 351 368 269V103C368 38 360 32 302 26V0H513Z"></path></g></svg>)</span></td><td class="align_center"><span style="width: 38.6238ptpx;"><svg height="8.69875pt" id="M8" style="vertical-align:-0.3499298pt" version="1.1" viewbox="-0.0498162 -8.34882 38.6238 8.69875" width="38.6238pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M384 0V27C293 34 287 42 287 114V635C232 613 172 594 109 583V559L157 557C201 555 205 550 205 499V114C205 42 199 34 109 27V0H384Z"></path></g><g transform="matrix(.013,0,0,-0.013,6.24,0)"><path d="M244 635C114 635 38 519 38 422C38 317 111 240 217 240C236 240 255 244 277 256L345 292C311 140 203 39 59 15L64 -15C89 -15 150 -5 204 17C339 72 440 202 440 386C440 521 368 635 244 635ZM228 602C326 602 352 479 352 390C352 370 351 347 348 324C327 308 293 296 258 296C174 296 124 369 124 458C124 517 152 602 228 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<div>Specification of the white LED module.</div>

International Journal of Photoenergy

tab2

Table 2

Table 2: Experimental Study on the Effect of In/Out Radial-Finned Heat Sink with PCM under Constant and Intermittent Power Mode in Power LEDs 