The role of cooling and air-conditioning systems in submarines is assessed as indispensable, and a reliable water supply is essential for both crew and equipment. At the same time, the large amounts of high-temperature exhaust fumes discharged from submarine engines provide an excellent opportunity to recover and apply this waste energy in required applications. This paper introduces a novel multipurpose desalination, cooling, and air-conditioning system to recover waste heat from both the exhaust fumes and the cooling water of submarine engines. The whole system is mathematically modelled and analysed based on the actual thermo-physical parameters of the engine's exhaust fumes. The analysis indicates that at cooling water flow rate of 0.25 kg/s and diesel exhaust mass ratio (X) of 0.25, the mass flux through the membrane in the desalination unit reaches 8.3 kg/m²h. Whereas for the same cooling water flow rate, the mass flux increases by 2 kg/m²h as X increases from 0.25 to 0.3. The results also show that a 160 kW cooling power is only achievable when X varies between 0.8 and 0.95 and the refrigerant mass flow rate is in the range of 0.27 kg/s to 0.34 kg/s.

冷却和空调系统在潜艇中的作用被认为是必不可少的，可靠的供水对船员和设备都至关重要。同时，从海底发动机排放的大量高温废气为在必要的应用中回收并利用这种浪费的能量提供了极好的机会。本文介绍了一种新颖的多用途脱盐，冷却和空调系统，可从潜艇发动机的烟气和冷却水中回收废热。整个系统是基于发动机废气的实际热物理参数进行数学建模和分析的。分析表明，在冷却水流量为0.25 kg / s和柴油机排气质量比（X）为0.25的情况下，²小时 对于相同的冷却水流量，当X从0.25增加到0.3时，质量通量增加2 kg / m ² h。结果还表明，仅当X在0.8和0.95之间变化并且制冷剂质量流量在0.27 kg / s至0.34 kg / s的范围内时，才可获得160 kW的冷却功率。