An Analytical Approach to Transient Room Temperature Analysis

For the past few years, nuclear utilities have been interested in the calculation of transient room temperatures at various station locations following loss of heating/ventilating/air conditioning and/or following station blackout. Transient room temperature analyses invariably involve the use of computer programs utilizing various finite difference schemes. A manual solution method is proposed for room heatup transients, thereby reducing the engineering time spent to obtain the results from tens (occasionally hundreds) of hours to a few hours in many cases.