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首页> 外文期刊>International journal of green energy >RADIANT DOMESTIC COMBUSTION STOVE SYSTEM: EXPERIMENTAL AND SIMULATED STUDY OF ENERGY USE AND THERMAL COMFORT
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RADIANT DOMESTIC COMBUSTION STOVE SYSTEM: EXPERIMENTAL AND SIMULATED STUDY OF ENERGY USE AND THERMAL COMFORT

机译：辐射式家用燃烧炉系统：能源利用和热舒适性的实验和模拟研究

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A steady-state space radiant heat model and a stove combustion model are developed to simulate the heat exchanges between various surfaces in the room and the stove and stack surfaces, assuming stiochiometric combustion inside the stove and the exhaust gases flow out through the stack by natural convection. The space heat model calculates the fuel consumption, the stove, stack temperatures, and the mass flow rate of exhaust gases, and provides an opportunity to study the energy efficiency of the stove, while satisfying the constraints of thermal comfort. Fanger (1982) model and a radiation exchange model between various surfaces of the space, the thermal building energy balance, and stove combustion process is applied to determine the mean radiant temperature (MRT) and the extent of thermal comfort as determined by predicted mean vote (PMV). The overall model is validated by performing experiments in a room placed inside a controlled outdoor environment. The room is heated using a domestic stove common for rural areas of Lebanon and the MRT, the room air temperature, the walls and window temperatures are measured at two stove positions. The measured MRT, the average room temperature, and the wall surface temperatures agreed within 7% of values predicted by the numerical model A parametric study is performed to optimize the stove and occupant locations in the room where adequate comfort level can be maintained at lower fuel consumption levels. The values of MRT and PMV depend strongly on the position of the radiant stove heater and stack with respect to the cold window and the occupant location. It is shown that it is possible to save up to 15% in stove fuel consumption by changing the stove position in the room with respect to the window and to the person, while maintaining the same level of comfort.
机译：建立稳态空间辐射热模型和炉灶燃烧模型，以模拟房间内各个表面与炉灶和烟囱表面之间的热交换，假设炉内的化学计量燃烧和废气自然流经烟囱对流。空间热模型计算燃料消耗，炉子，烟囱温度和废气质量流量，并为研究炉子的能源效率提供了机会，同时满足了热舒适性的约束。利用Fanger（1982）模型和空间各个表面之间的辐射交换模型，建筑物的热能平衡和炉灶燃烧过程来确定平均辐射温度（MRT）和由预测平均投票确定的热舒适程度（PMV）。通过在受控室外环境中的室内进行实验来验证整体模型。使用黎巴嫩和MRT农村地区常见的家用炉灶对房间进行加热，在两个炉灶位置测量房间的空气温度，墙壁和窗户的温度。测得的MRT，平均室温和墙体表面温度均在数值模型预测值的7％范围内。进行了参数研究，以优化房间内的火炉和乘员位置，从而在较低燃料下可保持足够的舒适度。消费水平。 MRT和PMV的值在很大程度上取决于辐射炉灶加热器和烟囱相对于冷窗和乘员位置的位置。结果表明，通过在相对于窗户和人的位置改变房间内的炉灶位置，同时保持相同的舒适度，可以节省多达15％的炉灶燃料消耗。

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