Document VjBDgQxV7BjB1wkzRK2mXG6Vj

554 CHAPTER 23 1952 Guide BIBLIOGRAPHY Trend Curves for Estimating Performance of Panel Hating Systems, by B. F. Raber and F. W. Hutchin son (A.S.H.V.E. Transactions, Vol.'48, 1942, p. 425). A.S.H.V.E. Research Report No. 1192--Panel Heating and Cooling Performance Studies, by B. F Itaber and F. W. Hutchinson (A.S.H.V.E. Transactions, Vol. 48, 1942,p.'35). A.8.H.VJ3L Research Report No. 1193--Radiation as a Factor.in the Feeling of Warmth in Convection Radiator and Panel Heated Rooms, by F. C. Houghten, Carl Gutberlet and E. C. (A.S.H.VJ3. Trans actions, Vol. 48, 1942, p. 85). Panel Heating and Cooling Analysis, by B. F. Raber and F. W. Hutchinson (AJ3.H.V.E. Transactions Vol. 47, 1941, p. 285). Operating Results of a Residence Radiant Wall Heating System, by EL J. Rodee (AJ3.H.V.E. Transac tions, Vol. 47, 1941, p. 123). . Performance of a Residential Panel Heating System, by H. F. Randolph and J. B. Wallace (A.S.H.V.E. Transactions, Vol. 49, 1943, p. 235). Radiant Heating (Beating and Ventilating, March, 1941, p. 35). Radiant Heating and Cooling, by F. El Gieseckis (Heating, Piping and Air Conditioning, June, July, Au gust, September and October, 1940). Calculations for Radiant Heating, by T. Napier Adlam (Heating and Ventilating, October, 1931).' - Radiant Heating and Cooling, Part I, by C. O. Mackay, L. T. Wright, Jr., R. E. Clark, and N. R. Gay (Cornell University Engineering Experiment Station, Bulletin No. 32, 1943). Design Method for Panel Heating Systems Using Copper Tubing, by R. G. Vanderweil (A.S.H.V.E* Journal Section, Heating, Piping and Air Conditioning, Nov. 1947, p. 123). Air Temperature Gradients in a Panel Heated Room, by J. M. Ayres and B.W. Levy (A.8.H.V.E. Journal Section, Heating, Piping and Air Conditioning, Oct. 1947; p. 113). Graphical Solution of Radiant Panel Areas, by W. P. Chapman and R. E. Fischer (Heating and Ventilat ing, Jan. 1948, p. 88).. _ - Elmbedding Coils in Radiant Heating Panels, by D. L. Mills and L. J. LaTart (Heating and Ventilating, Dec. 1947, p. 75). Radiant Heat with Copper Tubing, by D. L. Mills and L. J. LaTart (Heating and Ventilating, Nov. 1947 p. 95). s . Panel Heat with Copper Tubing--Experiment in Practice, by D. L. Mill* and L. J. LaTart (Heating and Ventilating, Oct. 1947, p. 65). ... Experimental Studies on Panel Heating Tube Spacing, by B. F. Raber and F. W. Hutchinson (A.S.H.VJ3. 'Journal Section, Heating, Piping and Air Conditioning, Aug; 1947, p. 111). Panel Heating--A Basic Discussion, by S. Eonso (American Artisan, Oct. 1946, p. 68). Solar House Heated by a Warm Air Floor Panel, by John E. Peterson (American Artisan, Dec. 1946, p. 83). Design Data for a Warm Air Floor Panel, by Axel B: Algren (American Artisan, Jan. 1947, p. 141). The Mechanism of Heat Transfer, Panel Cooling, Heat Storage; by Charles S. Leopold (Refrigerating En gineering, July 1947, p. 33). Radiant Heating--Simplified Design and Installation (Copper and Braes Research Association, 1949). Laboratory Studies on Heai Flow Within a Concrete Panel, by C. M. Humphreys, H. B. Nottage, C. V. Franks, R. G Huebscher. L. F. Schutrum and D. W- Locklin (A5.H.V.E. Journal Section, Heating, Pip* ing and-Air Conditioning, April 1950, p. 109). Heat Flow Analysts in Panel Heating or Cooling Sections, by L. E. Hulbert, H. B. Nottage and C. V. Franks (A.S.H.VJS. Journal Section, Heating, Piping and Air Conditioning, April 1950, p. 117). Electric Analogger Studies on Panels with Imbedded Tubes, by Carl P.'Kayan (A.S.H.V.E. Journal Section, Heating, Piping and Air Conditioning, May 1950, p. 123). Books Hot Water Heating, Radiant Heating and Radiant Cooling, by F. E. Giesecke, 1947 (Technical Book Co., P. O. Box 62, Austin, Tex.). Panel Heating and Cooling Analysis, by B. F.- Raber and F. W. Hutchinson,-1945 (John Wiley and Sons, New York). Radiant Heating, by T. Napier Adlam, 1947 (Industrial Press, 148 Lafayette St., New York). Radiant Heating, by R. W. Schoemaker, 1948 (McGraw-Hill Book Co., New York). Chapter V (pages 103-115) of Healing and Air Conditioning, by J. R. Allen, J. H. Walker, and J. W. James (McGraw-Hill Book Co., New York--Sixth Edition, 1946). Chapter 12 (pages 363-392) of Heating, Ventilating and Air Conditioning Fundamentals, by W. H. Severn* and J. R. Fellows (John Wiley and Sons, New York, Second Edition, 1949). CHAPTER 24 UNIT HEATERS AND UNIT VENTILATORS Definitions; Unit Heaters: Classification, Application, Ratings, Location, Space Temperatures, Control, Piping, Boiler Capacity; Unit Ventilators: Ratings, Capacity Requirements, Application, Selection, Control, Location, Exhaust Flues; Window Ventilators DESCRIPTIONS of heating, cooling, ventilating, humidifying, and dehumidifying systems are given in other chapters. This chapter deals with unit heaters and unit ventilators. Unit air conditioners and unit coolers are discussed in Chapter 25. Definitions 1 The generally accepted meaning of the word unit in the terms unit heat ers, unit ventilators, and unit humidifiers, is that of a factory-made en cased assembly of the functional elements indicated by its name. Such units can be shipped complete or in. sections, so that the only field work necessary is the assembling of the sections, providing proper supports, and connecting the unit to sources of heat (or fuel), power and water supply and, if necessary-, to vent pipes for combustion gases. The term unit heater denotes an assembly of.elements, the principal function of which is heating. The essential elements of a unit heater are a fan and motor, a heating element, a housing, and outlet vanes or diffusers. The term unit ventilator denotes an assembly, the principal function of which is to ventilate.: Tt'may serve to circulate air within the space, or to introduce air from without the space, or may accomplish both purposes. The essential elements of a unit ventilator are a fan and motor, a heating element, a set of dampers, a housing, and outlet vanes or diffusers.. UNIT HEATERS Classification The various types of unit heaters which are at present available can usu ally be classified according to one of the three following methods: 1. By type of heater.. Under this classification there are three types of heating elements-to be considered: (o) the steam or hot water type, (6) the electric type, and. (c) the direct fired type which may be gas, oil, or coal fired. 2. By type of fan. Under this classification there are two types of fans to be considered: (o) the propeller type1 and (b) the centrifugal type. Either type may be arranged for horizontal or vertical delivery of air. 3. By arrangement of dements. Under this classification there are two types of heaters to be considered: (a) the draw-through type, in which the fan draws air through, and (5) the blow-through type, in which the fan blows air through the heater. Unit heaters are available in any combination of the three preceding gen eral classifications. For example, the steam or hot water type may be 555