Typescript agricultural research report by A.S. Cromarty, a version of which was published in the Journal of Agricultural Engineering Research. Report - 'An Electrical Analogue for Airflow Studies in Chilled Grain'
Typescript agricultural research report by A.S. Cromarty. Report - 'Resistance of Airflow of Moist Barley and its Influence on Grain Chilling'
Typescript research report by A.S. Cromarty concerning a water heating system for use on dairy farms. Report - 'Modification of a Commercial Refrigeration System to Provide Hot Water'
Annotated photocopy of a typescript research report by A.S. Cromarty concerning a water heating system for use on dairy farms. The report includes diagrams. Report - 'Modification of a Commercial Refrigeration System to Provide Hot Water' (copy)
Typescript research report by A.S. Cromarty concerning the effects of cooling different grains for storage. Report - 'Introduction to the Cooling and Storage of High Moisture Content Grain'
Typescript agricultural research report by A.S. Cromarty concerning the effects of cooling moist barley and wheat for storage. Report - 'The Chilling of Moist Grain'
File originally labelled 'Odd notes and diagrams for Church Farm Installation and basic Heat Recovery Units', containing notes, charts and diagrams. The file dates mainly to the 1960s, with some later additions and annotations added by A.S. Cromarty. Notes and diagrams for Church Farm heat pump installation
File of research papers originally labelled 'Dx 125 Tank Tests in Boiler House etc. and pressure chart for various sites'. The material includes a photocopied photograph of A.S. Cromarty with equipment, a document entitled 'Heat Recovery from Refrigerated Farm Tanks', charts and typescript and manuscript reports on milk tanks. Papers relating to milk tank testing
File originally labelled 'Early Press Reports of 1962 Open Day, NIRD Letters, Charts etc for test work'. The material is comprised of original and photocopied news cuttings, a bibliography, letters from the National Institute for Research in Dairying, and charts concerning Heat Recovery Units. The file includes later annotations by A.S. Cromarty supplying contextual information. Papers relating to a Shinfield open day, letters and research data
File containing typescript and photocopied research reports, including some annotations. There is also an image of a installation of equipment at a farm and some fair copies of test result data. Reports on dairy heat pumps and test results
File originally labelled 'Dairy heat pump and heat recovery units test data and characteristics. Mainly Bulk Tank Water'. The material includes test results for the various stages of the development of a fully integrated and reliable system of heat recovery from bulk milk Tanks. The file contains the results of lab and field work conducted at NIRD (National Institute for Research into Dairying) by ERA Foundation staff. Most items date from 1960-1968, with some later photocopies and notes added by A.S. Cromarty. Papers relating to heat recovery from bulk milk tanks
File containing research notes, charts, and draft reports concerning 1/4, 1/3 hp and 3/4 hp dairy heat pumps. The file includes a later note and annotations by A.S. Cromarty. File of research material on dairy heat pumps
Typescript report written by A.S. Cromarty covering the research programme leading to the production of the ADDON Heat Recovery Unit for use in dairies. The report also 'describes alternative, simplified methods for determining performance under farm conditions.' Cromarty prepared the report when he was considering becoming a consultant on the installation and use of heat pumps on dairy farms. The document begins with an analysis of the performance of early bulk tanks submitted to the NIRD Test Facility for compliance with the Milk Marketing Board BC 56 Test specification. Report - 'Heat Recovery from Refrigerated Farm Tank - External Coil Development'
1 file and 1 item Reports of the Electrical Research Association Agricultural Sub-Committee and others
Typescript agricultural research report by A.S. Cromarty. The report is annotated on the back. Report - 'Apparent Cooling Patterns in Aerated Grain'
Typescript agricultural research report by A.S. Cromarty. Report - 'Determining Chilling Patterns in Duct-Ventilated Bins of Barley'
Annotated draft of a typescript research report by A.S. Cromarty comparing different hay drying systems. Report - 'Blow and Cold Blow'
File of scientific working papers relating to early boiler house Heat Recovery Unit test results, with charts and thermocouple plots. The papers include notes, graphs, diagrams illustrating equipment and the experimental set-up, as well as the ERA log book for the Boiler Test House. Papers relating to early heat recovery unit test results
File of 'raw' scientific data from Heat Recovery Units (HRUs) tested at Church Farm by staff at the National Institute for Research into Dairying. The data is recorded in notes, temperature and pressure charts, which include baseline information taken before the installation of HRUs and tests comparing an HRU Mark 6 with earlier machines, amongst the results of other experiments. The file includes some later notes added by researcher A.S. Cromarty. Test results for a heat recovery system at Church Farm
File originally labelled 'First Dx Tank Tests with basic heat exchanger', containing a photograph of equipment, draft report 'The ERA Dairy Heat Pump Water Heater', graph and charts of data from heat recovery unit experiments conducted at the National Institute for Research into Dairying by ERA staff. There are also some later notes about this work added by A.S. Cromarty. Papers relating to tank tests with basic heat exchanger
File labelled 'Miscellaneous. Thermocouple Position for Test Work done by ERA' containing scientific working papers, including notes, charts, and drawings of equipment. Most of the material is original and dates to the early 1960s. Some photocopied documents, annotations and a photographic print date to c 2016. Papers concerning thermocouple positions in heat pump tests
File concerning 1/4, 1/3 hp and 3/4 hp dairy heat pumps containing research notes, graphs, reports, photographic prints, schematic diagrams, and charts. The file includes later annotations by A. S. Cromarty. File of research material on dairy heat pumps
File originally labelled 'File - 'Mainly 3/4 hp DHP NIRD tests and performance'. The material consists of research notes, charts, reports dating from 1957-1963 and and a Ministry of Agriculture and Fisheries report on Hall Milk Cooling Plant dating from 1931. The file includes later annotations by A.S. Cromarty. Papers relating to dairy heat pump tests and performance
Folder containing letters from Milk Marque, Prof. R.H. Ellis, National Institute for Research in Dairying and others to A.S. Cromarty, as well as copies of photographs of Dairy Heat Recovery Unit (HRU) equipment and researchers, schematic diagrams of bulk tanks and HRUs. The file also includes a note by A.S. Cromarty on 'Historical developments' in the field of milk cooling and heat recovery, and several short accounts written by Cromarty of work carried out between the 1950s- 1970s in this area. There are also a few later copies of articles and photos from the 1930s - 1960s, as well as an information sheet from South West Refrigeration: 'Heat Reclaim: The Green Machine', and copies of research data, mainly in the form of charts. Papers relating to dairy heat pump research
Album containing mainly black and white photographic prints and diagrams of equipment used in experiments on the use of Heat Recovery Units in dairies carried out by A.S. Cromarty and colleagues. The album also features photographs of Electrical Research Association staff at Brickhouse Farm, Church Farm, NIRD, Shinfield, the EAR Field Station and Reading University Commercial Dairy Farm at Sonning. Cromarty also included a copy of his paper for the journal 'Shinfield Progress', 'Modification of a Commercial Refrigeration System to Provide Hot Water'. The photographs date from 1958 - 1965, however the album also contains a short summary written by Cromarty in 2018, explaining the album's contents and his reasons for assembling it. Photograph album relating to dairy heat pump research
