Showing 59 of 59 results

How far is stacking in vaccine refrigerators recommended and are there specific SOPs to guide in the event where we have to stack vaccines, because of high volumes? Has stacking a significant...
RAMZI OUHICHI - 2021
Bonsoir  Je souhaite lancer un appel d'offre pour l'achat de réfrigérateurs spécifiques pour les vaccins ( à compression fonctionant à l'électricité) respectant les normes de l'OMS...
image
A fully functional cold chain system must be available in country to ensure the uninterrupted availability of quality vaccines to service-delivery levels. Cold chain equipment is therefore of...
Olivia Bessat - 2020
Cher-e-s membres francophones de la communauté TechNet-21, C'est avec grand plaisir que je partage avec vous les nouvelles directives de l'UNICEF pour la gestion des données issues de...
Dan Brigden - 2020
Recent developments in refrigerator technology offer healthcare workers the ability to store vaccines in portable active (powered) refrigeration devices, rather than in traditional passive vaccine...
Dear Partners and Coleagues,   As Haier Biomedical is a manufacturer of medical cold chain for more than 20 years, recently we are always asked what cold chain solution is recommended for the...
Ian Lester - 2020
Dear All, I was recently asked to write an article about "getting ahead of the curve" in terms of capacitating the cold chain in anticipation of the Covid-19 vaccine and of course as the world...
Dear friends, Greetings from National Cold Chain Resource Centre,India!!!!!!! Would like to introduce NCCRC in brief. It is joint initiative of GoMH, MoHFW - GoI & UNICEF and with its technical...
Jenny Hu - 2019
Dear TechNet community, Poor power conditions are a major challenge to maintaining the vaccine cold chain in many LMICs, necessitating the development of specialized CCE such as ILRs and SDD...
Dave Klassen - 2018
Hello, I am brand new to TechNet-21 so this will be my first posting.  I am trying to find an SDD (Solar Direct Drive) freezer which will maintain -10C and below. The product I need to store in...
Dear TechNet-21 community, Further to the publication of the English and French versions of the Decommissioning and safe disposal of cold chain equipment guidance earlier this year (available here...
Denise - 2018
Dear TechNet-21 Colleagues, WHO PQS will be engaging with a selected group of PQS product manufacturers on Tuesday, July 10th to discuss and agree on a path forward for some significant proposed...
One of the beneficial features of SDD refrigerators is its relative simplicity. Electrically two wires from the solar array are directly connected to the compressor. This simplicity minimizes...
Dear TechNet-21 communty, I would like share with you some pictures of the installation process of 37 SDD that we are doing in Colombia. Best regards.
Matt Morio - 2018
We are happy to announce the latest version of the Total Cost of Ownership tool for cold chain equipment (v1.5) is now available to download and use. If you have been using an earlier version of the...
I am developing an off-grid backpack with an inbuilt removal battery powered (8hrs) portable refrigerator that is approx 1.5 litre in size and can transport 2 blood bags. The off-grid backpack has...
Dear Technet members, I would like to share my thoughts on the temperature monitoring devices and thermostal for vaccine refrigeration system. In the early days of EPI, temperature of the...
Matt Morio - 2017
We are happy to announce the latest version of the Total Cost of Ownership tool for cold chain equipment (v1.4) is now available to download and use. If you have been using an earlier version of the...
Dear viewers - sharing the following for needful Universally it is very well known that vaccination is one of the most cost effective public health programme from control to eradication of Vaccine...
Dan Brigden - 2017
I’ve been reading with great interest the most recent issue of Vaccine, which is dedicated to “Building Next-Generation Immunization Supply...
To ensure that solar direct drive (SDD) appliances can keep vaccines at acceptable temperatures continuously, the installed photovoltaic array often produces excess power that is not used by the...
Dear Colleagues, As known that Ice-lined refrigerators are the best choice wherever there is at least 8 hours electricity a day, but what about producing ice-packs for immunization session (e.g....
Dan Brigden - 2017
WHO and UNICEF have just published a new evidence brief on solar direct-drive (SDD) vaccine refrigerators and freezers. It includes case studies from Tanzania, Colombia and Kenya, as well as an...
Carla Lee - 2017
Dear Technet Followers: Is there a universal recommendation for the distance a refrigerator should be from the wall. I have seen 1 foot, 10cm, 300mm, and 50mm on different documents from different...
Matt Morio - 2017
Happy new year all, We are happy to announce that the latest version of the Total Cost of Ownership tool for cold chain equipment (v1.3) is now available to download and use. The latest version has...
Akhil Agrawal - 2016
We are working with ILRs. While daily operations, it was found that there is formation of water droplets inside the device. We want to measure the amount of condensation taking place inside the...
Gilles Ries - 2016
At B Medical Systems we have received lately more and more complaints about RCW50EG, absorption type vaccine refrigerator / ice pack freezer, that stopped working or never started working correctly....
Soren Spanner - 2016
Knowing the problem of vaccines being frozen because of too cold ice-packs. What about freezers that does not get colder that minus 5'C
Dan Brigden - 2016
Dear TechNet members, I'm putting together a document on the performance of solar direct-drive (SDD) vaccine refrigerators and would like to request your assistance. If you have experience of SDD...
Dear I like to share with you in this space a video about the instalation, basic maintenance and operation of one of the solar equipments with PQS that are installed in my country (Colombia),...
Most ice-lined refrigerators in India are fully functional at 5 - 45 degrees Celsius (ie, they are able to maintain an internal temperature of 2-8 degrees Celsius when the external temperatures are...
Thanks to the flexibility of the TechNet-21 website, I can share two older (circa 1985) collections of densely technical and highly practical equipment maintenance documents developed by WHO using...
Dear friends, Gavi, the Vaccine Alliance is very pleased to present the Cold Chain Equipment ‘Technology Guide’, to support the appropriate selection of modern, efficient and reliable...
Pat Lennon - 2016
In cooperation with the Uganda Ministry of Health, PATH recently conducted a pilot study to document equipment failures in the Uganda National Expanded Programme on Immunization cold chain. Due to...
Dear TechNet Colleagues,   I would like to share with you a report on our latest cold chain maintenance investigation in Mozambique: "Why Fridges Fail Part 2: RTM Data for Maintenance". We are...
John Lloyd - 2016
Among the TECHNET postings on cold-chain equipment there are embedded remarks pointing towards the need to make vaccine refrigeration simpler and less expensive to procure, more responsive to energy...
Patrick Lydon - 2016
In case this new article published in Applied Energy is of interest http://www.sciencedirect.com/science/article/pii/S0306261916302793 AbstractAn intermittent solar adsorption refrigerator can...
I was recently looking at the “System Sizing tool 3/3” in a 2DI3 “Technical evaluation and Methodology” a unicef publication. The publication originated from a 2DI3 SDD industry meeting. The...
Patrick Lydon - 2016
Interesting paper on system design in Nigeria from Health Affairs. Abstract One of the major problems facing Nigeria’s vaccine supply chain is the lack of adequate vaccine storage facilities....
Modibo Dicko - 2016
Dear Supply Chain Managers and Friends, A few days ago, I conducted a supervisory visit to a health post in Senegal to check the implementation of the "Informed Push Model" project (IPM), which I...
Dan Brigden - 2015
WHO and UNICEF have just released a new joint publication on solar fridges and freezers that is intended to provide managers in national immunization programmes with guidance on how to implement...
Paul Dowling - 2015
Dear Colleagues Is there any guidance (ideally offical and/or anecdotal) on transportation of non cold chain items in refrigerated vehicles? Assuming vehicles have space, (are making journeys less...
Dear Colleagues, Many of the prequalified refrigerators have integrated digital thermometers with digital display outside showing instantaneous temperature readings. During the field visits, I...
Moderator - 2015
Choices, choices, choices – they are both the bane and blessing of our times. As immunization managers, we now have a wide array of PQS-prequalified cold chain equipment to choose from, but how do...
Potency of vaccine at the time of administration to the beneficiaries is of utmost importance in preventing morbidity and mortality due to vaccine preventable diseases. Evolution of more and more...
John Lloyd - 2015
The percent difference between the gross refrigerator (ILRs and SDDs) volumes quoted in the PQS Catalogue and the net vaccine storage volume varies from 29.6% to 88.6 %. This is a wide variation for...
Sun Frost developed a hybrid refrigerator/ice pack freezer, the FRH-3. The Sun Frost FRH-3 has a SDD freezer and a battery powered refrigerator. The SDD freezer is the same size as our F-1...
Two solar direct drive ice pack freezers have been successfully tested for seven months in Columbia. The F-1 was manufactured by Sun Frost and a second freezer was produced by Sun Danzer. The...
Dear All, I am a project coordinator for Nexleaf Analytics. We are a nonprofit organization dedicated to building low-cost technologies that create positive health, environmental and social impact....
Toryalai Hart - 2013
We think of fridge holdover time (autonomy) in the context of power shortage, whether cloudy weather in the case of solar, or power cuts for A/C systems. While this will see functioning equipment...
The data given for solar-powered refrigerators in the PQS sheets is not given consistently enough so that comparisons of various models can be made. The data needed for a fair comparison most...
Sun Frost has been building vaccine storage refrigerators for the past 20 years. Sun Frost is now building a direct-drive ice pack freezer. Some new technologies incorporated into the design allows...
Yann Letallec - 2013
Hi, I would greatly appreciate your expert opinion on a technical question regarding extensive field monitoring of solar generator. The objective is to carry out a long-term, rather in-depth field...
Success has many fathers, failure is an orphan. Yet, we can learn so much more from failure than successes. The amazing safety of modern flight is a result of this systems-based analysis of...
Recently, I have seen a number of relatively large RFQ’s for direct drive refrigerators. These refrigerators do not have an ice pack freezer. From past feed back from our customers and WHO we have...
In solar powered vaccine storage systems high quality wet cell batteries have the potential of lasting longer than sealed batteries. However, they periodically need the addition of distilled water....
Compressor Replacement Without a Vacuum Pump Replacement of a compressor requires the use of a vacuum pump. Solar powered vaccine refrigerators are generally located away from the utility grid....
Optimize.WHO - 2010
[i]by Olivier Ronveaux, WHO, and Mojtaba Haghgou, Vaccine Management Consultant[/i] Maintaining required temperatures in vaccine refrigerators and freezers is one of the more thankless tasks of a...
Deleted User - 2009
What service life do you think vaccine refrigerators should be able to provide? For example, some products may suggest a 10 year life while others suggest longer, with typical repairs. PQS requires a...