The remote parameter control technology (RPC) is a test means of simulating actual vehicle driving road conditions in room test bench.

The prediction of hotel's room utility monthly is very important to arrange staff and material for the coming year, but also the parameter to evaluate economic profit and make the cost calculation.

In this paper, a distributed parameter model of room air-conditioner adiabatic capillary was developed, on the basis of mass-energy conservation and momentum conservation.