20 long tons of ice per 12 hrs at -15 °C were produced from steam at 190 °C. If there is nomiscellaneous losses. How many TR are required? (Use 2257 and 334 as your reference valuesfor the latent...

20 long tons of ice per 12 hrs at -15 °C were produced from steam at 190 °C. If there is no miscellaneous losses. How many TR are required? (Use 2257 and 334 as your reference values for the latent heats and 4.187 for the value of specific heat of water).